Flashlight came in a nice white box with printed picture and specifications.

In a box there is flashlight, clip, lanyard, case, spare o-rings, micro USB cable and manual

Case is made of neoprene (I think) and is really a tight fit to put flashlight in but once in it gives good protection for flashlight. It also has loop to put on belt or similar.

Flashlight is dual button design. Tail button is on/off switch and side button is mode switch. This design gives good protection against accidental activation of flashlight while in pocket or backpack.
It has glass breaker, but I’m not sure is it useful.

There is micro USB charging port under protective ring with LED indication of charging. Red when charging and green when charged. There is o-ring so it should be protected against moisture or rain, but not waterproof.
In my test it charged cell with about 500mA.

With this flashlight I wasn’t able to use flat top batteries, only button top was working. There should also be reverse polarity protection integrated.
positive connection is button, and tail (negative) connection has spring.

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"With the first link, the chain is forged. The first speech censured...the first thought forbidden...the first freedom denied – chains us all, irrevocably."

Forgot what the driver-side pad looked like, but acto the picture above, looks like just a small solder-blob on the center pad would be enough to make contact with any flattop you’d throw at it, no?

I’d‘ve suggested a small spring, but don’t recall how much clearance there’d be. Even compressed, a spring might be too “tall” for a cell to fit.

Wet the center-pad with some solder just enough to make it convex (vs solder-blobbing a cell), and it should work, no?

Come to think of it, I don’t recall what I was using in my F1 when I was carrying it. Thought it was a pulled panny-A, flattop. Then again, any leftover tack-welded part of the connection strip from the pack it came from might’ve been enough to make contact.